Tractor



1.1 is a front elevation view of a tractor, showing our new design;

1.2 is a rear elevation view thereof;

1.3 is a left side elevation view thereof;

1.4 is a right side elevation view thereof;

1.5 is a top view thereof;

1.6 is an upper left front perspective view thereof; and

1.7 is an upper right rear perspective view thereof.

A bottom view is omitted because it is plain and unornamental and formsno part of the subject matter of the claimed design.

CLAIM The ornamental design for a tractor, as shown and described.